# include <stdio.h>

int main(int argc, const char *argv[]) {
    int a[3][4] = {{1,2,3,4},{5,6,7,8},{9,10,11,12}};
    int a1[3][4] = {1,2,3,4,5,6,7,8,9,10,11,12};;
    int a2[3][4] = {{1,2},{3,4},{5,6}};
    int a3[3][4] = {1,2,3,4,5,6};
    int a4[][4] = {1,2,3,4,5,6,7,8,9};

    return 0;
}

